For example, if your friend’s home town is Mumbai, you can enter Mumbai for Hometown. Now you’ll see people who come from Mumbai.

If your friend attended University of Delhi, you can also enter University of Delhi for College or University. Now you’ll see people from Mumbai who also studied at University of Delhi.

Note: when you search for friends by their networks, some people may not show up, depending on their privacy settings. For example, if someone chooses the Only Me privacy setting for their hometown, they won’t show up if you search for their hometown.